ASTROSAT CZTI

Data Quality Report

Orbit 45767

Creation date: 2024-06-27T23:15:57.142196
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_183T01_9000006124_45767cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45767cztM0_level2_quad_clean.evt
Size (bytes)657,144,000107,288,640
Size626.7 MB 102.3 MB
Events in quadrant A6,743,100716,083
Events in quadrant B7,497,035687,041
Events in quadrant C3,438,891754,499
Events in quadrant D6,115,376612,748

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245883
B0272471
C0150241
D0228821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68594817.012684%
B6860106315.495627%
C68601111.618076%
D686095213.877551%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7414 6860 136 136 1.83% 1.98%
B 7415 6861 477 477 6.43% 6.95%
C 7415 6861 31 31 0.42% 0.45%
D 7415 6861 723 723 9.75% 10.54%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 3049707 18342.07 790 772 166.2
A 13 248 581044 3490.86 790 772 166.2
A 14 235 24898 145.14 790 772 166.2
B 3 112 2858482 18659.93 766 744 153.1
B 0 171 420421 2740.33 766 744 153.1
B 15 201 399947 2606.64 766 744 153.1
C 14 254 276989 1482.45 787 795 186.3
C 3 233 43268 227.97 787 795 186.3
C 14 96 16497 84.28 787 795 186.3
D 2 249 1502287 7895.9 749 725 190.2
D 13 249 738501 3879.57 749 725 190.2
D 8 48 476039 2499.42 749 725 190.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter